2 Ergebnisse für: 9.226.190
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synthesis of 5-bromovanillin - YouTube
https://www.youtube.com/watch?v=V025g9e9OuA
This is very easy and nice synthesis of 5-bromovanillin an important precursor for syringaldehyde. The vanillin smells really nice but the bromo derivate has...
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How to Pronounce Vanessa Hudgens - YouTube
https://www.youtube.com/watch?v=1heNpI6RTmc
Learn how to say words in English correctly with Emma Saying free pronunciation tutorials. Over 140,000 words were already uploaded... Check them out! Visit ...